body, div, span, header, footer, nav, section, aside, article, ul, dl, dt, dd, li, a,
p, h1, h2, h3, h4,h5, h6, i, b, textarea, button, input, select, figure, figcaption {
padding: 0;
margin: 0;
list-style: none;
font-style: normal;
text-decoration: none;
border: none;
font-family: "Microsoft Yahei",sans-serif;
-webkit-tap-highlight-color:transparent;
-webkit-font-smoothing: antialiased;
}
input[type="button"], input[type="submit"], input[type="search"], input[type="reset"]
{
-webkit-appearance: none;
}
textarea { -webkit-appearance: none;} 
html,body{
height: 100%;
width: 100%;
}
.clear:after{
content: '';
display: block;
clear: both;
}
.clear{
zoom:1;
}